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' (NoModeL) G. T. DEMARY.

HEEL ATTAUHING MACHINE.

100820.050. Patented June 16, 1885.

|NVENTDR WJTNEEEIES ihvrrsn STATES ArENr @rrrcs.

GEORGE T. DEMARY, OF BOSTON, MASSACHUSETTS, ASSIGNOR TO THE NATIONAL HEELING MACHINE COMPANY, OF SAME PLACE.

HEEL-ATTACHING MACHINE.

SPECIFICATION forming part of Letters Patent No. 320,050, dated June 16, 1885.

Application filed January 23, 1885.

T0 ctZZ whom it nuty concern:

Be it known that I, GEORGE T. DEMARY, of Boston, in the county of Suffolk and State of Massachusetts,a citizen of the United States, have invented a new and useful Improvement in Heel-Attaching Machines, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming a part of this specification, in explaining its nature.

The invention as represented is especially adapted for use in nailing what are technically known as spring-heels thatis, a heel made by forming down the outsole and interposing between it at the heel end of the upper and insole one or more wedge-shaped lifts. It is necessary for nailing this work, first, that the points of the nails should converge in order that the heads may be driven as near the outer line and edge of the sole as is desirable or practical, and that the points should be clinched upon the iron surface of the heel support. It is also desirable that headed nails be used for securing the parts together.

Referring to the drawings, Figure 1 is a view of an awl-holding block reversed, with the awls projecting therefrom. Fig. 2 is an elevation, enlarged, of the awl which I prefer to use. Fig. 3 is a perspective view, also enlarged, of the awl. Fig. at represents the templet-plate bearing upon the heel-section of a spring-heel boot or shoe and the awls in position above it. Fig. 5 is a View of the templet bearing upon the heel portion of the springheel boot after the awls have been driven and nails fed, showing the holes pricked by the awl and the drivers in position. Fig. 6 represents the nails as having been driven by the drivers. Fig. 7 shows in elevation a boot or shoe with the springheel, and Fig. 8 a view of a nail.

The heel-support a is much like that of the ordinary heelsupport of the heelattaching machines known in the market as the Na tional Heeling Machine. The templet or pressure plate bis made slightly concave upon its under surface, I), and is provided with holes b ,considerably larger than the diameter of the awls used. The awls c are held by the awlblock, which is reciprocated in any desired way; but I prefer that described in the Hen- (No model.)

derson patents,Nos.252, 215 and 259,687. Each awl is made with one straight side, 0, and with a somewhat long, rounded, tapering point, 0 the taper being upon all sides excepting the straight, the point of that portion being round, or very nearly round, and the point of course being out of line with the center. These awls are arranged in the awl-holder plate, so that their straight surfaces are upon the inside and their inclined surfaces upon the outside, as by so doing the awls upon entering the leather are caused to take a downward and inward converging movement simultaneously, and the nails which are inserted into said holes will be caused to take the same direction.

It will be apparent, on examination of the springheel shoe shown in Figs. 6 and 7, that the heel portion of the outsole, which forms the lower tread of the heel, instead of being less in size than the insole, as is the case with the ordinary top lift of a heel, is considerably larger, and that it extends outwardly on all sides therefrom. It will also be observed that it is very considerably rounded, and that in order to hold down the edge of the sole and fasten it securely to the insole it is necessary for the nails to extend inward, for if they were driven straight they would not enter the insole unless placed at such distance in from the edge that the heel portion of the outsole would be of very little assistance in holding the edge well down and the remainder of the heel well compacted.

The nail-holder d has holes (1 sufficiently large to receive the headed nails which are used, and the drivers 0 are made larger than are ordinarily employed, in order to well cover the heads of the nails.

In operation the boot or shoe is placed upon the heelsupport and moved into position, the templet-plate is moved down upon the same, and its concave portion bears upon the heel portion of the sole. The awls are then reciprocated and withdrawn,the nail-carrier moved, and the nails deposited in the holes in the templet and the drivers reciproeated, driving the nails therefrom into the spring-heel in an inward diverging direction. The nail should have a clinching-point in order to clinch easily upon the surface of the heel-support.

I would say that the awls herein described may be used, bya slight change in the arrangement, for nailing heels known as ogee or French heels, or that class of heels which have a comparatively small upper surface, requiring that the points of the nails diverge as they are driven, and this is done by simply turning the awls half around, so that the beveled surface shall be upon the inside instead of the outside of such awls, or as many of them as it is necessary to use for forming these outwardly-inclined holes. Of course the degree of the inclination may be Varied by changing the degree of the slope of the point.

The awls may of course have a flat bevel instead of a round tapering one.

Having thus fully described my invention, I claim and desire to secure by Letters Patent of the United States 1. The combination of the templet-plate 1),

having the concave surface b, holes b larger 20 a gang or group of reciprocating drivers of 3o about the size of the holes in the nail-holder and templet, all substantially as and for the purposes described.

GEORGE T. DEMARY.

Witnesses:

F. F. RAYMOND, 2d, FRED. B. DOLAN. 

